US3686153A - Process for the preparation of linear high molecular weight compounds - Google Patents
Process for the preparation of linear high molecular weight compounds Download PDFInfo
- Publication number
- US3686153A US3686153A US82218A US3686153DA US3686153A US 3686153 A US3686153 A US 3686153A US 82218 A US82218 A US 82218A US 3686153D A US3686153D A US 3686153DA US 3686153 A US3686153 A US 3686153A
- Authority
- US
- United States
- Prior art keywords
- preparation
- molecular weight
- high molecular
- polymer
- general formula
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F26/00—Homopolymers and copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a single or double bond to nitrogen or by a heterocyclic ring containing nitrogen
- C08F26/06—Homopolymers and copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a single or double bond to nitrogen or by a heterocyclic ring containing nitrogen by a heterocyclic ring containing nitrogen
Definitions
- R is selected from the group consisting of a hydrogen atom, a halogen atom, an alkyl group having 1 to 4 carbon atoms, OR' and -COOR', in which R is an alkyl group having from 1 to 4 carbon atoms, is disclosed.
- a process for the preparation of these compounds is also disclosed.
- This invention relates to a process for the preparation of linear high molecular Weight compounds. More particularly, it is concerned with a process for the preparation of copolymers of a monomer having an enamine structure with an electrophilic olefin.
- the monomer having an enamine structure which is used in the processof the present invention is a 1,3,3-trimethyl-Z-methyleneindoline derivative represented by the general formula CH3 C 3 $113 (I) wherein R is a hydrogen atom, a halogen atom, a lower alkyl group such as methyl, ethyl, propyl or butyl, -OR' or COOR' in which R in a lower alkyl group such as methyl, ethyl, propyl or butyl.
- the electrophilic olefin suitably used in the process of this invention includes acrylonitrile, methyl acrylate, ethyl acrylate and N-butyl acrylate.
- Various copolymers can be obtained by varying the combination and proportion of the two groups of monomers, and the copolymerization can be carried out in a suitable solvent such as, e.g., dimethylformamide, dioxane, tetrahydrofuran, dimethylacetamide, benzene and toluene.
- a suitable solvent such as, e.g., dimethylformamide, dioxane, tetrahydrofuran, dimethylacetamide, benzene and toluene.
- the level of the monomers in the solvent ranges from 10% by weight up to 100% by weight corresponding to copolymerization in the absence of a solvent.
- azobis compounds such as azobispropionitrile, azobisisobutyronitrile and azobisvaleronitrile
- azo and diazo compounds such as diazoaminobenzene, nitrosoacylarylamines, azothioethers and para nitrosobenzene diazonium salts.
- Peroxide compounds unfavorably have a tendency to discolor the enamines to reddish purple, as well as oxygen in air.
- the initiators are generally used at a level of from 0.01 to 5% by weight.
- the mixture of the enamine with the olefin for example, less than 1 mole to 1 mole of olefin, is heated in the presence or absence of a solvent at from about 80 to 95 C. for about 3 hours in the presence of the polymerization initiator in a stream of gaseous nitrogen or under a degassed condition to effect copolymerization.
- the solution with an increased viscosity is poured into methanol with vigorous stirring to precipitate the polymerizate.
- the polymerizate thus obtained is purified by dissolving it in tetrahydrofuran and re-precipitating it in methanol.
- the polymer prepared in the process of the present invention can be converted into a tough coating film by incorporating a plasticizer therein.
- the polymer is expected to have the capacity of transmitting an electric charge by virtue of the heterocylic ring in the side chain.
- its electrical characteristcs vary on exposure to light, so that it is applicable for use in electrophotography as an organic photoconductor.
- the polymerizate prepared in the process of the present invention is a copolymer of an enamine with an olefin.
- the characteristic peak of absorption for the exomethylene in an enamine at 1 645 cm? is extinguished by the polymerization.
- absorption at 2230 cm.- by the CN and absorption of aromatic nucleus in the indolin occurs and, in copolymerization with acrylate esters, an absorption at 1720 cm.- by an ester linkage is observed.
- the copolymer was reprecipitated from a tetrahydrofuran-methanol system to obtain a colorless copolymer with an intrinsic viscosity, as measured at 30 C. in tetrahydrofuran, of 0.175.
- Differential thermal analysis results were: 57 C.endothermic; 222 C.fever and decomposition.
- Example 2 of l,3,3-trimethyl-2-methyleneindoline, 5 g. of ethyl acrylate and 0.1 g. of azobisisobutyronitrile was processed in a manner similar to Example 2 to obtain 4.8 g. of a polymer having an intrinsic viscosity of 0.100 (30 C. in THF). Dilferential thermal analysis: 62 C.--endothermic, 92 C. fever and dissolution.
- R is selected from the group consisting of a hydrogen atom, a halogen atom, an alkyl group having from 1 to 4 carbon atoms, ---OR' and -CO'OR, in which R is an alkyl group having from 1 to 4 carbon atoms,
- a process for preparing linear high molecular weight compounds which comprises copolymerizing an enamine having the general formula CH OH;
- R is selected from the group consisting of a hydrogen atom, a halogen atom, an alkyl group having from 1 to 4 carbon atoms, -OR' and -COOR in which R' is an alkyl group having from 1 to 4 carbon atoms with an electrophilic olefin selected from the group consisting of acrylonitrile, methyl acrylate, ethyl acrylate and nbutyl acrylate in the presence of an azo-type polymerization initiator.
- said azotype polymerization initiator is selected from the group consisting of an azobisnitrile compound, an azo compound and a diazo compound.
- said initiator is selected from the group consisting of azobispropionitrile, azobisisobutyronitrile, azobisvaleronitrile, diazoaminobenzene, nitrosoacrylarylamines, azothioethers, and paranitrosobenzene diazonium salts.
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
Abstract
A HIGH MOLECULAR WEIGHT POLYMERIC COMPOUND REPRESENTED BY THE FOLLOWING RECURRING UNIT
1,3,3-TRI(CH3-),2-((-)CH2-CH(-X)-CH2-),R-INDOLIN-2-YL
WHEREIN R IS SELECTED FROM THE GROUP CONSISTING OF A HYDROGEN ATOM, A HALOGEN ATOM, AND ALKYL GROUP HAVING 1 TO 4 CARBON ATOMS, -OR'' AND COOR, IN WHICH R'' IS AN ALKYL GROUP HAVING FROM 1 TO 4 CARBON ATOMS, IS DISCLOSED. A PROCESS FOR THE PREPARATION OF THESE COMPOUNDS IS ALSO DISCLOSED.
1,3,3-TRI(CH3-),2-((-)CH2-CH(-X)-CH2-),R-INDOLIN-2-YL
WHEREIN R IS SELECTED FROM THE GROUP CONSISTING OF A HYDROGEN ATOM, A HALOGEN ATOM, AND ALKYL GROUP HAVING 1 TO 4 CARBON ATOMS, -OR'' AND COOR, IN WHICH R'' IS AN ALKYL GROUP HAVING FROM 1 TO 4 CARBON ATOMS, IS DISCLOSED. A PROCESS FOR THE PREPARATION OF THESE COMPOUNDS IS ALSO DISCLOSED.
Description
United States Patent Oifice PROCESS FOR THE PREPARATION OF LINEAR HIGH MOLECULAR WEIGHT COMPOUNDS Hisatake Ono, Syu Watarai, and Chiaki Osada, all of 105 Ohaza Mizonuma, Asaka-shi, Saitama, Japan No Drawing. Filed Oct. 19, 1970, Ser. No. 82,218 Claims priority, application Japan, Oct. 17, 1969,
Int. Cl. C081? 7/12, 15/16, 15/22 US. Cl. 260-855 R 7 Claims ABSTRACT OF THE DISCLOSURE A high molecular weight polymeric compound represented by the following recurring unit CHz(|3HCHiC- x mo N-CH;
wherein R is selected from the group consisting of a hydrogen atom, a halogen atom, an alkyl group having 1 to 4 carbon atoms, OR' and -COOR', in which R is an alkyl group having from 1 to 4 carbon atoms, is disclosed. A process for the preparation of these compounds is also disclosed.
BACKGROUND OF THE INVENTION (1) Field of the invention This invention relates to a process for the preparation of linear high molecular Weight compounds. More particularly, it is concerned with a process for the preparation of copolymers of a monomer having an enamine structure with an electrophilic olefin.
The monomer having an enamine structure which is used in the processof the present invention is a 1,3,3-trimethyl-Z-methyleneindoline derivative represented by the general formula CH3 C 3 $113 (I) wherein R is a hydrogen atom, a halogen atom, a lower alkyl group such as methyl, ethyl, propyl or butyl, -OR' or COOR' in which R in a lower alkyl group such as methyl, ethyl, propyl or butyl.
(2) Description of the prior art Although the compound of the above general formula is well known as an intermediate in the synthesis of dyes, the compound is not known to have been used as an integral part of a linear high molecular weight chain formed through its exomethylene group. These derivatives have had no attention in the art of the synthesis of high molecular weight compounds.
Only a few examples of the use of enamines as vinyl monomers, namely, the synthesis of a copolymer of N- 3,686,153 Patented Aug. 22, 1972 vinylindole with indole having recurring units represented by the formula f i i -o-o-co-- H-N A It 11 (III) as disclosed in Macromolecules, 2, 82 (1969), and the synthesis of polyamides by the reaction between an enamine and a diisocyanate according to the equation as disclosed Die Macromolecular Chemie, 108, 1 (1967).
It is disclosed in Journal of Chemical Society, 1964, 2165 that an enamine reacts with an electrophilic olefin to form a cyclobutane as illustrated by the following NH 0 ti However, there is no description of the formation of high molecular weight compounds, and the polymer prepared by the process of the invention and represented by the general Formula II given hereinafter has not been obtained until our investigations.
a a 3 DESCRIPTION OF THE INVENTION We have now found that a copolymer having recurring units of the formula DETAILED DESCRIPTION OF THE INVENTION The enamine of the general Formula I suitably used inthe process of the present invention includes those as described in the following Table 1:
TABLE 1 R: Boiling point H 116.5 C./15 mm. Hg. Cl 129 C./6 mm. Hg. OCH 132 C./6 mm. Hg. COOC H 140 C./4 mm. Hg. CH 129 C./8 mm. Hg.
The electrophilic olefin suitably used in the process of this invention includes acrylonitrile, methyl acrylate, ethyl acrylate and N-butyl acrylate.
Various copolymers can be obtained by varying the combination and proportion of the two groups of monomers, and the copolymerization can be carried out in a suitable solvent such as, e.g., dimethylformamide, dioxane, tetrahydrofuran, dimethylacetamide, benzene and toluene. Generally, the level of the monomers in the solvent ranges from 10% by weight up to 100% by weight corresponding to copolymerization in the absence of a solvent.
As the polymerization initiator suitably used are azobis compounds, such as azobispropionitrile, azobisisobutyronitrile and azobisvaleronitrile, and azo and diazo compounds, such as diazoaminobenzene, nitrosoacylarylamines, azothioethers and para nitrosobenzene diazonium salts. Peroxide compounds unfavorably have a tendency to discolor the enamines to reddish purple, as well as oxygen in air. The initiators are generally used at a level of from 0.01 to 5% by weight.
The mixture of the enamine with the olefin, for example, less than 1 mole to 1 mole of olefin, is heated in the presence or absence of a solvent at from about 80 to 95 C. for about 3 hours in the presence of the polymerization initiator in a stream of gaseous nitrogen or under a degassed condition to effect copolymerization. After completion of the reaction, the solution with an increased viscosity is poured into methanol with vigorous stirring to precipitate the polymerizate. The polymerizate thus obtained is purified by dissolving it in tetrahydrofuran and re-precipitating it in methanol.
The polymer prepared in the process of the present invention can be converted into a tough coating film by incorporating a plasticizer therein.
The polymer is expected to have the capacity of transmitting an electric charge by virtue of the heterocylic ring in the side chain. In fact, its electrical characteristcs vary on exposure to light, so that it is applicable for use in electrophotography as an organic photoconductor. It
can also be used as an agent for rendering acrylic fibers dye receptive.
It was identified by its infrared absorption spectrum that the polymerizate prepared in the process of the present invention is a copolymer of an enamine with an olefin. The characteristic peak of absorption for the exomethylene in an enamine at 1 645 cm? is extinguished by the polymerization. In addition, in copolymerization with acrylonitrile, absorption at 2230 cm.- by the CN and absorption of aromatic nucleus in the indolin occurs and, in copolymerization with acrylate esters, an absorption at 1720 cm.- by an ester linkage is observed.
The present invention will now be illustrated in greater detail by reference to the following examples which are to be considered only as illustrative and not limiting.
EXAMPLE 1 Preparation of a polymer of the general Formula II in which R=H and X:CN.
Into a three-necked flask of a 100 ml. capacity there were charged 42 g. of l,3,3-trimethyl-2-methyleneindoline, 26 g. of acrylonitrile and 0.1 g. of azobisisobutyronitrile, and the charge was stirred at C. for 3 hours with the passing of gaseous nitrogen through the flask. The liquid mixture increased in viscosity and became syrupy. The mixture was then poured into 2 liters of vigorously agitated methanol to precipitate the polymer. The unreacted monomers were dissolved in the methanol. The precipitate was recovered by filtration and dried to obtain 21 g. of a copolymer. Because of pink color, the copolymer was reprecipitated from a tetrahydrofuran-methanol system to obtain a colorless copolymer with an intrinsic viscosity, as measured at 30 C. in tetrahydrofuran, of 0.175. Differential thermal analysis results were: 57 C.endothermic; 222 C.fever and decomposition.
EXAMPLE 2 Preparation of a polymer of the general Formula H in which R=H, X=CN.
Into a 50 ml., three-necked flask there were charged 5.7 g. of 1,3,3-trimethyl-2-methyleneindoline, 17.5 g. of acrylonitrile, 0.02 g. of azobisisobutyronitrile and 10 ml. of dimethylformamide, and the charge was stirred at C. for 3 hours with the passing of gaseous nitrogen through the flask. After completion of the reaction, the charge was poured into methanol to precipitate a polymer. The yield was 1.89 g. and the intrinsic viscosity at 30 C. in THF was 0.123.
EXAMPLE 3 Preparation of a polymer of the general Formula II in which R=H, X=CN.
Into a glass tube there were charged 3 g. of 1,3,3-trimethyI-Z-methyleneindoline, 4.5 g. of acrylonitrile and 0.01 g. of azobisisobutyronitrile. After repeated freezing deaeration, the tube was sealed under a reduced inner pressure of l0- mm. Hg and put in a thermostat at C. for 3 hours. The tube was then opened and the charge was poured into methanol to obtain 3.8 g. of a polymer having an intrinsic viscosity of 0.160 (30 C., in THF) EXAMPLE 4 Preparation of a polymer of the general Formula II in which R=H, X=COOC H A mixture of 4 g. of l,3,3-trimethyl-2-methyleneindoline, 5 g. of ethyl acrylate and 0.1 g. of azobisisobutyronitrile was processed in a manner similar to Example 2 to obtain 4.8 g. of a polymer having an intrinsic viscosity of 0.100 (30 C. in THF). Dilferential thermal analysis: 62 C.--endothermic, 92 C. fever and dissolution.
EXAMPLE 5 Preparation of a polymer of the general Formula II in which R=H, X=COOCH A mixture of 6.3 g. of l,3,3,-trimethyl-2-methyleneindoline, 6.3 g. of methyl acrylate,'20 ml. of dimethylformamide, and 0.02 g. of azobisisobutyronitrile was processed in a manner similar to Example 2 to obtain 4.3 g. of polymer.
EXAMPLE 6 Preparation of a polymer of the general Formula II in which R=OCH X=CN.
A mixture of g. of 1,3,3-trimethyl-5-methoxy-2- methyleneindoline, 5 g. of acrylonitrile, 30 ml. of dimethylformamide and 0.02 g. of azobisisobutyronitrile was processed in a manner similar to Example 2 to obtain 2.4 g. of a polymer.
EXAMPLE 7 Preparation of a polymer of the general Formula II in which R=COOCH X=CN.
A mixture of 4 g. of 1,3,3-trimethylene-5-carboethoxy- Z-methyleneindoline, 5 g. of acrylonitrile, 20 ml. of dimethylformamide and 0.02 g. of azobisisobutyronitrile was processed in the manner as in Example 2 to obtain 2.5 g. of a polymer.
EXAMPLE 8 Preparation of a polymer of the general Formula II in which R=CH X=CN.
A mixture of 7 g. of l,3,3,5-tetramethyl-Z-methyleneindoline, 8 g. of acrylonitrile, 20 ml. of dimethylformamide and 0.02 g. of azobisisobutyronitrile was processed in a manner similar to Example 2 to obtain 3.7 g. of a polymer.
EXAMPLE 9 Preparation of a polymer of the general Formula 11 in which R=Cl, X=COOC H A mixture of 3 g. of 1,3,3-trimethyl-S-chloro-Z-methyleneindoline, '6 g. of ethyl acrylate and 0.001 g. of azobisisobntyronitrile was processed in a manner similar to Example 3 to obtain 2.3 g. of a polymer.
What is claimed is:
1. A high molecular weight polymeric compound represented by the following recurring unit,
X HaC R wherein R is selected from the group consisting of a hydrogen atom, a halogen atom, an alkyl group having from 1 to 4 carbon atoms, ---OR' and -CO'OR, in which R is an alkyl group having from 1 to 4 carbon atoms,
6 and in which X is selected from the group consisting of CN and COOR'.
2. A process for preparing linear high molecular weight compounds which comprises copolymerizing an enamine having the general formula CH OH;
wherein R is selected from the group consisting of a hydrogen atom, a halogen atom, an alkyl group having from 1 to 4 carbon atoms, -OR' and -COOR in which R' is an alkyl group having from 1 to 4 carbon atoms with an electrophilic olefin selected from the group consisting of acrylonitrile, methyl acrylate, ethyl acrylate and nbutyl acrylate in the presence of an azo-type polymerization initiator.
3. The process as claimed in claim 2 wherein said electrophilic olefin is acrylonitrile.
4. The process as claimed in claim 2, wherein said azotype polymerization initiator is selected from the group consisting of an azobisnitrile compound, an azo compound and a diazo compound.
5. The process as claimed in claim 2, wherein said copolymerization is carried out in a solvent selected from the group consisting of dimethylformamide, dioxane, tetrahydrofuran, dimethylacetamide, benzene and toluene.
6. The process as claimed in claim 4 wherein said initiator is used in an amount of 0.01 to 5% by weight.
7. The process as claimed in claim 4 wherein said initiator is selected from the group consisting of azobispropionitrile, azobisisobutyronitrile, azobisvaleronitrile, diazoaminobenzene, nitrosoacrylarylamines, azothioethers, and paranitrosobenzene diazonium salts.
References Cited UNITED STATES PATENTS 2,475,161 7/1949 Szmant w 260--88.3 2,828,292 3/ 195-8 Coover 260-855 B HARRY WONG, IR., Primary Examiner US. Cl. X.R.
8--55; 96--1.5; 117-1383, 26030.4, 32.6, 33.6, 47 U, 80.3 R, 86.1 N, 88.3 R, 326.11
v UNITED STATES PATENT OFFICE CE'TWICATE OF ttN Patent No. 3, 686,153 Dated August 22 1972 l fl Hisatake Ono et a1 It is certified that error appears in the above-identified patent and that said Letters Patent are hereby corrected. as shown below:
In The Heading;
The name of the Assignee was omitted. Should read: --Assignee Fuji Photo Film Co. Ltd.
Signed arid sealed this 27th day of November 1973 (SEAL) Attestz v EDWARD M PLETCHER,JR. RENE D. TEGTMEEt'ER Attesti'ng Officer Acting GOIITIHISSlOIlE-I' of Patents F ORM PO-105O (10-69) USCOMM-DC 60376-P69 UvS. GOVERNMENT PRINTING OFFICE: 1969 0-366-334,
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8302869 | 1969-10-17 |
Publications (1)
Publication Number | Publication Date |
---|---|
US3686153A true US3686153A (en) | 1972-08-22 |
Family
ID=13790765
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US82218A Expired - Lifetime US3686153A (en) | 1969-10-17 | 1970-10-19 | Process for the preparation of linear high molecular weight compounds |
Country Status (6)
Country | Link |
---|---|
US (1) | US3686153A (en) |
BE (1) | BE757475A (en) |
CA (1) | CA923649A (en) |
DE (1) | DE2050920A1 (en) |
FR (1) | FR2065994A5 (en) |
GB (1) | GB1324438A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3798031A (en) * | 1971-11-10 | 1974-03-19 | Agfa Gevaert Nv | Photoconductive 1,2,3,4-tetrahydroquinolines employed in electrophotography |
US3830647A (en) * | 1970-12-11 | 1974-08-20 | Agfa Gevaert Nv | Recording process and element employing as photoconductive material fluorene ring system fused 1,2,-dihydro-2,2,4-trialkyl-quinolines |
-
0
- BE BE757475D patent/BE757475A/en unknown
-
1970
- 1970-10-09 CA CA095460A patent/CA923649A/en not_active Expired
- 1970-10-15 FR FR7037235A patent/FR2065994A5/fr not_active Expired
- 1970-10-15 GB GB4909970A patent/GB1324438A/en not_active Expired
- 1970-10-16 DE DE19702050920 patent/DE2050920A1/en active Pending
- 1970-10-19 US US82218A patent/US3686153A/en not_active Expired - Lifetime
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3830647A (en) * | 1970-12-11 | 1974-08-20 | Agfa Gevaert Nv | Recording process and element employing as photoconductive material fluorene ring system fused 1,2,-dihydro-2,2,4-trialkyl-quinolines |
US3798031A (en) * | 1971-11-10 | 1974-03-19 | Agfa Gevaert Nv | Photoconductive 1,2,3,4-tetrahydroquinolines employed in electrophotography |
Also Published As
Publication number | Publication date |
---|---|
GB1324438A (en) | 1973-07-25 |
BE757475A (en) | 1971-03-16 |
FR2065994A5 (en) | 1971-08-06 |
CA923649A (en) | 1973-03-27 |
DE2050920A1 (en) | 1971-04-29 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US3214492A (en) | Organic polymeric articles and prepara- tion thereof from derivatives of eth- ylene and unsaturated benzophenones | |
US2926161A (en) | Linear homopolymers of diallyl amines | |
US3639357A (en) | Process for preparing substituted maleimide polymers | |
US4143225A (en) | Homopolymers of a fluorenone derivative having pendant electron acceptor groups | |
US3764590A (en) | Organic photoconductive materials | |
GB2192189A (en) | Polymer of vinyl-biphenyl derivative adapted for optical use | |
US2987509A (en) | Nu-vinyl-3-morpholinone compounds | |
US2834763A (en) | Copolymers of trifluoroethyl acrylate | |
US3686153A (en) | Process for the preparation of linear high molecular weight compounds | |
US3563968A (en) | Process for the preparation of functional polymers from n-vinyl pyrrolidone | |
US4063947A (en) | Photoconductive insulating films comprising fluorenone-substituted oligomers | |
Iwatsuki et al. | Alternating copolymerization behavior of 2, 3, 5, 6-tetrafluoro-7, 7, 8, 8-tetracyanoquinodimethan as a very powerful acceptor monomer | |
US4822848A (en) | Hydrophilic-hydrophobic thermally reversible type polymer and method for production thereof | |
CA1038537A (en) | Polymers comprising 2-pyridone substituents and compositions thereof | |
US3197447A (en) | Polymers and copolymers of acetals of allyl alcohol | |
Nuyken et al. | Water‐soluble and photosensitive copolymers from methyl methacrylate and sodium 3‐vinylphenylazosulfonate | |
Iwatsuki et al. | Polymer effect on the electron‐donating character of a polymeric donor, 3. Formation of charge‐transfer complexes between polymer containing carbazolyl groups and three kinds of common acceptors | |
US4172933A (en) | Polymers having pendant acceptor groups | |
Avci et al. | Cyclocopolymerization of allyl‐acrylate quaternary ammonium salts with diallyldimethylammonium chloride | |
US4159202A (en) | Photopolymer having 2-pyridone side group | |
US4247714A (en) | Copolymerizable, ultraviolet light absorber 4-acryloyloxybenzal-1-alkyl-1-phenylhydrazone | |
US3711244A (en) | Sulfonazide bonding of polymeric dyes on polyamide, polyester or polyolefin under radiation | |
Simionescu et al. | New 3, 6-dihalogencarbazole-containing monomers and polymers | |
Kern | Vinylmercaptobenzothiazole and its polymers | |
Iwatsuki et al. | Polymerizations of 1‐(9‐anthryl) ethyl methacrylate and charge‐transfer complex formations with its polymers |